If the Estimated Population Proportion Is

question 42

Multiple Choice

If the estimated population proportion is .30 based on previous studies, and the acceptable error is plus or minus 5 percent, and the z-value for a 95 percent level of confidence is 1.96, the needed sample size is approximately:

• A)323
• B)187
• C)36
• D)212
• E)554

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Definitions:

Non-REM Sleep

Non-REM sleep refers to the part of the sleep cycle that includes deep sleep stages but not rapid eye movement (REM) sleep, characterized by slower brain waves and physical recovery.

Cycle

A series of events or processes that repeat in a predictable sequence, often used to describe natural phenomena, systems, or routines.

REM Sleep

REM (Rapid Eye Movement) Sleep is a stage of sleep characterized by rapid movements of the eyes, low muscle tone, and the propensity to dream vividly.

Sleeping Pills

Medications taken to help induce sleep in individuals who struggle with falling asleep or staying asleep, known as insomnia.